Apparatus for elevating, transporting, and discharging material.



0. JOHNSON, DECD; n. Johnson, Auzxxsrnnnu. APPARATUS TOR. EIJJYATIIH),`TRAN SPORTING, ARD DISOHABGING MATERIAL.

3 SHEETS-SHEET 1.

Panam-,eq Feb. 2s, 1911.

APPLICATION YILRD APR.2I,1008.

Patented M128, 1911. Y

Y A 3 SHEETS-SHEET L APPLIGATION FILED APB. 27, 1908.

'iba/ww QS 1 IMI/W y@ @M15/MM 0. JOHNSON, DECD. N.JoHNsoN.`ADmN1sTnnn1x. APPARATUS FOB. BLEVATING, TBANSPORTING, ANDDISCHARGING MATERIAL.

PPLIOATIox P'ILED 23.27.1908.

- Patented Feb. 28, 1911.

a xmms-amm a.

I Y @www zwtiis for l'llei'ating. Transport-ing, an

l 'omi Joni:

hrriiiiii'rns .non iiLEVATING; rRANsPoirriNe, Ann nisciisneineiaArER'IAL.

To all whom 'it may concern:

Be it known that I, Oni: J'oiixsox, residing in tiilwaiikee, in thecounty of Milwaukee and State of lllisconsin, have invented new andAiisefiil Improvements in Aipara- Dis* i charging Material, of whichthefollowing is a description, reference being had to the accompanyiiig`drawings, which are a part of this specitication. v A

My intention has relation to improvements iii apparatus for elevating,transport ing, and discharging material.

'lliepriniarr object of the invention is to provide .a' constructionwherein the power -mediiiin for causingthe travel ofthe carringe, forraising and lowering the bucket,

and i' or opening and closing the bucket jaws is earriedsdirectly on andtravels with the carriage. vinstead of being stationary and independentof the carriage, as has heretosfere been the practice in this class ofdevices.

further object resides in employing, in connection with a constructionof the above character, a in'eans for balancing the weightot the bucket.

Vith the above primary, and other incidental, objects in view, theinvention consists of the devices and parts, or the equivalents thereof,as hereinafter more fully set forth. l

in the accoiiipaijsiiig drawing, Figure 1 is a side elevation of thecomplete apparatus, parts broken away. Fig. 2 is a view of the. sidesupporting frames at the forward end of the apparat-iis viewing saidframes at right angles to Fig. 1. Fig. 3 is a cross secticn of thehorizontal frame, showing the carriage and bucket. Fig. l is a view ofthe rear end of Fig. 1. Fig. 5 is a diagram of the rope connections.Fig. 6 is a view of one of the',z Iindi-ng drums; and, Fig. 7 is adiagram offra modified form of rope conncctians.

tct'erriii;r Yto the drawings, the numeral S indicates the horizontalframework, of any y desiredor well known form of construction,

and vsuitably 'ti'iissed and braced. This vframe' is providedlongitudinally thereof son', or MILWnUnEE,"wrsconsini'miromiin.ioinsoiinniiiinisrnsrmx or/sninonn JOHNSON,.pncnAsnD.- .A

Specification of Letters Patent.

4Application led April 27, 1906. Serial No. 313,904.

*the horizontatframe' the usual boom 10,

nally crossing brace rods or trusses'l.

Patented 28',

the major` portion of this 'boom being oriiied by beams 1l-11 whichconstitute continuations of the rails 9.

The rear end of the traine is supported by means of a triissed support.,preferably consisting of legs 12--12 converging upwardly, and connectedby means of diagoforward end of the frame 8 is Supported by means ofside frames 14C- 14 having a top connecting piece 15 which bridges over.the upper side ot' frame 8. Each side fraincis The' preferably composedofa lower inverted U-shaped portion 16, and legs 17-17convergingiipwardly from said lowei portions,"

connecting piece 15.

to travel on the rails of the track.

of the invention will now be' referred to,viz.',' y

the arrangement of the power, mediuiiifo'r' driving the carriage, forraising' and lowering tliebiicket, and for opening and closing: the Jawsof the bucket, thesaid power inediiiin being carried directly by thecarriage,

and being under the control of an operator" on thecarriage.

The numerals 20, 21 and-:22 indicate,re'

spectively, three motors which are nioiintcd directly on the carriagefThe motor-9.0, at

the rear of the "carriage, is for the purpose et' d riviiig thecarriage` or, in other words,

causing the travel of said carriage, and to this end the motor shaft isgeared up to thel axle of the rear wheels of the carriage, so that whensaid motor is started, the rotation' of the motor shaft will cause therotation of the axle. and hence the carriage will oe nioved eitherforwardly or rearwardly,inv

accordance with the direction of turning of the motor shaft. The tworemaining ino-w:

tors Q1 and 22 are respectively for the purpose of operating theropcsfor opening and closing the bucket jaws and for raising and Ylowering the bucket. the operation of which will be hereinafter fullypointed out.

I employ in connection with my invention, Va clam-shell bucket. the twomain members `of which consist of segmental jaws 23--23 'genial siethejws numeral 29. This rope is meeting. Just below the ae `pivotallyconnected to a pivot shaftQ by means of arms 25.- The amis cross eachother in diagonal planes, and at their upper extremities, .above thepivot shaft, carry 'sheaves 26-26. f Links 27 are connected to the outerends of the upper of the pivoted bottom segments or andeonverge upwardlyto a point of pointo convergenceot the links 27 is carried a sheave 28.

he rope or cable for opening and closing of the bucket is indicated bj'the connected at one end to the front end vof the carriage, thenceiscarried forwardly around a guide sheave jaws,

-' 30 at the frontl end of the booni l0, thence guide sheave 32,

rearwardly and beneath a guide sheave 3l, thence at a slight upwardinclination over a thence continued rearwardly at a sheave ,Blteonnectedto the top of a counter-weight 35, thence upwardly and over a A of rope,'indicated wound therearound a plurality .of times, and

' and thence upwardly and connected at its continued downwardly toslieave 28. Extensionrope 38, after leaving sheave 28, is continuedaround ione of the sheaves 26, -thence upwardly and over sheave 28,thence downwardly and around the other sheave 26,

end toa stud 39..

The-lifting or elevating rope is indicated by the numeral 40, and thelower end of this rope is connected to an eye 4l at the point ofconvergence of the two links 27. :This -rope is'continued to and woundaround and secured to another drum 42 carriedthe carriage. The motor E21controls the. winding of drum 37, that is to say, the shaft of thismotor is geared up to the drain shaft, so f that when the motor is setin its shaft rotated, the drum shaft 'will be ro operation and tated ina direction to either raise or lower the rope 38, in accordance with thedirection of rotation of the motor shaft. Drum 42 is controlled 'bymotor 9,2 in the same manner,

.that is to say, the motor shaft is geared up to' the drum shaft, soasto rotate Vthe drum in a direction either to raise or lower the rope 40,in accordance with the direction of turning of the motor shaft. Theseveral motors 20, 21 and 22 are all under the control ort an operatortraveling with the carslight decline, and over a guide slieave 33 at therear end of the frame S, thence downwardly and around a 38. The

venieiitly located with respect -right shafts 55-55.

'the different motors,- provide trolley poles l5-'15 carrying trolleywheels 4G. These wheels 46 are adapted-to engag electrical conductorsartrolley rails 47447 extending longitudinally along the main frame 8,ex

tensions 48, thereof, also extending lougi tudinally along the boom. Thecurrent passes from one of the trlley rails, down the trolleypole'to thecontrolling levers ell, and

by suitable manipulation of these levers bv .the operator any oneorinore of the inotoiis may be thrown into the circuit, and the inotorsthus operated. The. other trolley pole and rail form thereturn for theelectrical current.

If desired,'the entire apparatus-suny be inade portable, in order thatit may be conto a vessel from which coal is to be taken, or with respectto piles of coal at dilerent locations.,

This is accomplished byproviding wheels 49 at the lower ends of thelower portions 16 of the side supports 17, and similar wheels at thelower end of the legs l2 of the rear support. These wheels, it desired,may run on suitable rails 50. Mechanical means are advantageouslyemployed for causing the entire apparatus to travel along the rails, andAto this end I provide the side frames 17 with a motor 5l, the shaft 52thereof being geared to :nid adapted to rotate upright shafts 55 throughthe internieshing of the gears 53453, Qn* the ends of shaft with gears54:54 .Tori the upper ends of said up- The lower ends of these uprightshafts are geared to the axles of the w eels 49 so vas to cause therotation oic said a les. A motor 56 is mounted on the learn( sportingframe, and the motor shaft 110 57 d i an upright shaft 58 through theniediflli of suitable gearing,` and this upright 58, in turn, drives,the axles of the V wheels 49 of this rear supporting frame through themedium of the gearing between the lower end of shaft 5S. and the axlesof wheels 49.

The inveited U-shaped low`er portions 16 of the side frames 17 aresuiliciently high to permit of the passage of cars beneath the topmember thereof. These cars are shown by dotted lines in Fig. 1, and thetwo outer cars are indicated by the numerals 59, 59, and theintermediate smaller car by the numeral 60.. It' desired, after thebucket is loaded,and raised, the carriage 18 can be moved to a positionalong its track so as to dump its load into a hopper 61. This hopper hasleading therefrom a passage (l2, and the bottom of passage 62 'formed byan finalised Screen es.' The mi which is de; posited in the hopper 61passes into the pas-Y sage 62, and the large lumps .of co'al' passdown-the inclined screen,'and through dis'- charge spouts-GAQ-GiUu-ihich diyerge outwardly in directions 'to discharge into the"cars :S9-Q59.v The'ifiner particles of coal ,p'a'ss through theinesliesof the sieve, and enter, a

spout 65,. whichfis'in pjsitionfto'discharge.

vthese tine particles intol the car 60.

For the sake of describing the operation Y of the apparatus, it will beassumed that the bucket shown in Fim 1 had been first low Vered into thevessel 66, with the jaws of the bucket intheir open position. The motor21, under the operation of the apparatus would then be thrown intooperation, and this would y'cause a winding o' cable 38 and a closingofthe jaws'of the bucket e The motor 22 is next put into operation, andboth motors "will then he effective' in winding up I cables 38 and 40,and consequently hoisting tion, in accordance the loaded bucketiip tothe carriage. Motor 20A is now set into operation, and this will causethe carriage totravel in either direc- 'itli the direction of turning ofthe motor shaft, and the carriage will then travel to av place where itis desired toduinp lthe load. When this place is reached, rope 40 isheld, the niotor 21 reversed, and the shaftthereof thereby caused torotatein a direction to unwind rope 38.

- This will cause au opening of the bucket jaw-'sand a dumping of thecontents of the bucket, and if itis desired to first lower beforedumping, motor 22 is reversed, which will ,cause an unwinding of rope40, and when thebuckct is lowered sulliciently motor 2-2`can be thrownout of operation and inotor 21 put into operation in a ina-nner toopenthe jaws as hereinbefore described. After .the bucket has discharged itscontents. the motor 20 may again be set in action in such manner as tocause the carriage to travel along the ti'ack to the point of loading.

It will be seen that by the arrange-.nent of the ropes in connectionwith'l the counterweight 35 the weight oi' heft ot the empty bucket isalways countei'balanccd. :While provision has heretofore been nia de forcounterbalancing the weight ot the empty buckets in this class ofdevices,- Vet l aiu not aware that a counterbalancingmeans has beenprovided in connection with av carriage in which the power uiediiuu foroperating the carriage tion, however,l is, the provision:broadly-of thepower inediuni `carried by the-carriage;

ordinarf'arr: iig veineuts,'A where :theA power mediuinis located at apoint' distantfromdistance from tliepositionof the operator being'frequently .very great. :ln "fact, under Athe/,old construction it isfrequently neces- Saly' 'folan exti'a'-nian 'tobestationed at -the pointof dumping tosignalthe operatorat Ltlie-fpoint .,wliere" .thepower...inediuni -is con-1 trolled,A so that said operator inay knowwhen to drop the bucket. Under my present improvement, wherein theoperator tra-vels with the load, and is at a point above the load, he isalways in a )osition to -riew the entire operation of loa ing andunloading, and can thereby iuost advantageously control the saine. Myimproved construction, also, renders it necessary 'only tofemployminimum amount of'rope, owing to the fact that the winding druins arecarried directly on the carriage. Y

Y In Fig. 7 o'dbe drawing I show a slightly modified mrope connectionwherein instead of the rope 38, after leaving the lastl sheave 2G beine'connected terminali to a stud 28, is continued up into the grooveofsheave 28, ata point opposite to its first vcontact with saidsheaveand extended to and connected with a pin or stud 6T r0- jectinglaterally from the; carriage 18. his Fig. 7 construction of bucket issimilar to the construction of bucket covered in Letters .Patent issuedjointly to the present ap li-v cant and John Johnson under Patent Jo.716.5239, dated Dec. 16, 1909., and should be provided with the lockingmeans fully described in said Letters Patent, the locking means referredto providing for locking the bucketin a. closed position, andalsolocking the saine in an open position. i

Referring more in detail t the operation of the bucket, it is to bestatet` that by winding upon the rope 38, the upper ends of the arms 25are brought together, and the jaws of the bucket ai'e consequently alsobrought together and closed. On the other hand, by unwinding orslackening rope 3S, and holding rope 40 tautl` the bucket jaws will openby gravity.

l 7hat l claim as my invention is:-

1. In an apparatus for elevating, ltransporting, and dischargingmaterial. the coinbinatioi'i of a frame provid .l with a track, acarriage adapted to travel along said track. a receptacle .for holdingiiiatci'ial carried h v the carriage, a cable connected to .the carriageand the receptacle and extend-,l :me nr-a direction.111"the'huc'oft-ravel'of' said carriage and l returning thereto'- and- .adapted to'operate the receptacle, a'counteih weight operatively connected withthe'cablef "fe and constructedto' cause -the'travielfoff the carriage.itis uecessarusgthat the operator-1'tliecarriage along its track, andiiieansifor-' stand atthis point, Vand iteon'seqi'ientlyoperatingrand-eontrollingsaid powenans139 l'to cause thecarriage to travel in either di-' Y track, a cable connected to thecarriageand the receptacle and extending in a direction in the line oftravel of said carriage and re'- turning' thereto, and acounterweightoperatively connected te said able 'and adapted to counterbalance theweight of `the receptacle. Y I 3. In an apparatus for elevating, -lrans-20 porting and discharging material, the coinbination of a frameprovided with a track, a' carriage adapted to travel .along said track,a receptacle for holding material carried by the carriage, power'meanscarried directly by the carriage and constructed to cause the travel ofthe carriage along its t track, a cable operatively. connected tothecarriage and the receptacle and extending ir= a direction in the line oftravel of said can' nage and Arunning over' a sheave rovided thereforand returning to said carr1age,and'

-a counterweight'prcvided with a sheave suspended from said cable andadaptedY to count-erbalance the weight of the receptacle.`

4. In an apparatus for elevating, transporting and discharging material,the combination of a frame providedwith a track,A

a carriage'adapted to travel along saidirack, a receptacle for holdingmaterial c arried by thecarriage, power meanscarried directly by thecarriage and constructed to cause the travel of the carriage'along itstack, a cable operatively connected to tle carriage and the receptacleand extending; in a. direction in the line of travel of carriage andrunning over sheaves provided, therefor and returning to said carriage,and a counterweight provided with .a shea've Slispended from scid cablebetween two of the sheaves and adapted to counterbalance the weight ofthe receptacle.

5. In an apparatus for elevating, transporting and discharging material,the coinbinatic-n of a frame provided with a track,

. -a carriage adapted to travel along said track, a receptacle forholding material carried by the carriage, power means carried directlyby the carriage and constructed to cause the travel of the carriageAalong its. track, a cable operativelyconnected'to the carriage and thereceptacle and extending in a direction in the line .of travel of saidcarriage and runningover sheaves located nearthe end of thc travel ofsai'dcarriagc in one direction, returning therefrom and run-A ning-'overa sheave .locatednear the end o f ,bination of a frame va ca rriage adated to travel along said vcarriage and the nece '1n a directionV in theline 'of travel of said track, power means carried dir one. directiontherefrom and the travel cil sani carriage in the opposite direction,and thence to the carriage, and a counterweight provided with a sheavesuspended from said cable between tw'o of the sheaves and adaptedto`counterbalnce the weight of the receptacle. l l

6.,.In 'an apparatus for elevating, transporting and dischargingmaterial, the coniprovided with a track,

track, a receptac e for holding material carried by the carriage,powermeans carried .directly by the carriage and constructed to causethe travel of the carriage along itsl track, a cable operativelyconnected to the ptacle and extending carriage and running over sheaveslocated near the endof the .travel of the carriage in one direction,returning therefrom and running over a sheave located near the end oftravel of said carriage in the' opposite direction and4 thence to thecarriage, another cable connected to said receptacle and to saidcarriage and adapted to raise and lowerv said receptacle, and acounterweight conadapted to `counterbalancethe weight of the receptacle`1 7. n an apparatus for elevating, 'transporting, and dischargingxgtefial, the combination of a frame provi ed itha track, a carriageadapted to traveE yang said ectlv by the carriage, a receptacle forholding material carried bythe carriage, and operatively connestedthereto by a cable, and a counter@ Weight connected operatively withsaid cable and'adapted tocounterbalance the weight. of the receptacle.

A 8. In. an apparatusifor elevating, transporting, .and dischargingmaterial, the combination of a frame provided with atm-ck, a carriageadapted to travel along the track, pon-"er means carried by thecarriage, a bucket having pivoted jaws, a rope o1' cable connected tothe carriage and extending in around a guide shear@ and tliencein theopposite direction and in engagement with a series of guide sheaves, andthence back to the power means carried by the carriage, aV ropeextending downwar y from the power'means to the bucket, a counter-weightwith which the first mentioned rope or cable has a louse'or slidingmovement, another rope or cable extending from .the bucket to thecarriage, and means for operating and controlling the power means.

9. In an apparatus for elevating, transporting, and dischargingmaterial, the combination of a frame provided with a track, a. carriageadapted to travel along said track,

,power means'carriedby the mariage, loadcarryingmeans carried by" thecarriage, and

nected to the first mentioned cable `and ics was? 5 means forcounterhalancing the weight/ of the. load-carryingmeans. "il" 10. -InfaIhoisting and cdnveyingapparav tus, the 'cn'ibinati'on with traversingcar- Iringe of self-prpellingf ineansf 'tl'iereom n grab, means saidcarriage 'for raising andV lowering said grab, means upon ctiiri'afefor'supporting an 'attendant'to control" t iei'triverswoftie ieairiaand' the movements of the grab, and means for counterw'eigliting thegrab, the counterweighting v 'means being Prelatively fixed with respectto the ltravel of thei`carriage, and the line to the cunteriveigliti'ngmeans extending from the carriage.tosaid'ineans in substantially theline of the travel of the carriage.

`,11`I1i 'a 'hoisting and conveying apparatus, the coiiibinatin'ivith acarriage of selfpropelling'incans "therefor, a grab, means forraising'and lowering the same, an endless ifope extending along the pathoi:l said oar- 'riage and operatively associated with said .raising andlowering means, anda counterweightconncct'ed,to said endless rope toassist, iii raising said grab. y

12'. Inti 'hoistirifr and conveying apparatus,'the `combination with atraveling carriage, a counterweight located at a relatively fixed pointapartt'rom the carriage and at a distance therefrom, a motor foroperating the conntervveight,-x said motor being mounteden lthecarriage', and a rope leading from the ciinterweightfto the motor.

-13. In a hoisting and conveying apparatus'f'thecombination with atraversing self i ropelled "carriage, of a grab, a hoisting drum" forsaid grab upon said carriage, means for counterweighting said grab, saidcounter-weighting means being relatively liied'iifitlrrespect to thetravel of the carri'age,'and"the line to the counterweiglitingmeant-extending from the carriage to said means in substantially theline of the travel of the 'carriage and means to relieve the. grab 'ftheV effect of said counterweigliting means. A track, a fframe movablysupported thereon, a 'hoisting drum on said frame, a motor 'on the framearranged to actuate the hoisting'drum, a counter-weight located at afixed point ,apartvfrom the frame and at av distance therefrom, and a.rope connecting the hoisting drum and the counterweight.

" 1 5.In a hoisting and conveyingapparatus, the Combination with acarriage, of self popelling'ineans'- therefor, a grab, means for raisingand lowering the Same,A an' endlessrope'exteiidingkalong the path o said'lage and' operatively 'associated with said` raising and vlon'f'e'rngmeans, a 'c'ounteriveiglitA connected to said endless rope to assist; inrising s'aidfn li, and means upon said carriiige for relieving.thelfgrab' of thfef counter- Initiation cfa frame provided with atrack,

itcixrriage adapted to travel alongsaid track,-

a receptacle for holding material carried by the carriage, acableconnected tojthc carriage and the i'eccptacleand extending iii-a;

and controlling said power means to cause the machine to tra velineither-direction, and means for positively raising the counter-`weight.

l?. ln an apparatus for elevating, transporting and dischargingmaterial, the -conibination of a frame. provided-with a track, acarriage adapted to travel along said track, a receptacle for holdingmaterial carried bythe carriage,` power means carried directly by thecarriage and constructed to cause the travel ot the carriage along itstrack, a cable connected to the carriage and the receptacle 'andextending in va direction in the line of travel of said carriage andreturning thereto, a ecimteriveiglit operatively connected to said cableand adapted to counterhalance the weight of the receptacle, and meansfor positively raising the counterweig'nt. Y ,A i y 1S. ln an apparatusfor elevating, transporting and discharging inateriah'thc conibinationof a frame provided with a track, a carriage adapted to tra vel alongsaid track, -a receptacle for holding material carried by the carriage.power means carried directly by the carriage and constructed to causethe travel of the carriage along its track, a. cable operativelyconnected to the carriage and the receptacle and extending in adirection in the line of travel of said earriage'and running over asheave provided therefor and returning to said carriage, acounterwsigiit provided with a sheave suspendct't from said cable andadapted to counterbalaiwe the weight of the receptacle, an'd means forpositively raising the counterweiglit.

19. in an apparatus for elevating. transporting and dischargingmaterial. tie couibination of a frame provided with a track,

a carriage adapted to travel along said track, a receptacle for holdingmaterial carried by the carriage, power means carried directly by thecarriage and constructed to cause the travel of the carriage alongitstrack, a cable ico llt)

operatively connected to the carriage and -the receptacle andextending'in a direction in the line of travel of said carriage andrunning over sheaves provided therefor and returning to said carriage. acounterweight provided with a sheave suspended from said cable betweentwo of the sheaves and adapted t0 counterbalance the weight ofthe re- Yhoisting tlrnm, another motor on the frame tei-weight.

33. track, a hoisting mechanism movably supported thereon, saidmechanism comprising a hoisting drum and means tor actuating said(l1-um, a'coanterweight near oneml of the track for assisting saitlhoisting mechanism in lifting a loacl, and a rope systemconnecting thehoisting drinn and the cou'nte.r\\'eght, said rope system being so ari'Nd that the lateral movement of the hoisting mechanism loes notaiectthe position of the connterweight.

34. .X track, a hoisting mechanism movably supported thereon,` Saiclmechanism comprisingra hoisting drum andmeans for actuating saitl(l1-unna counterweight near the end of the track for assisting saidhoisting mechanism in lifting a loatha vrope coni necting the hoistingdrum and the counterive-ight, auditif-:ins -for moving the hoisting fmechanism along fthe tack. l

A track. a frame morahly supported thereon, a hoisting -elrnni on saiflframe, a motoron the fram@ arranged to actuate the arranged to move saidf ame along the track, a connterweight` near one eml of the track, antla rope' connecting the hoisting tlrnm and the counterweight.

36. A track, a frame inovalilysupported thereon, a hoisting drum onsaid' frame, a motor on the frame arranged to actuate the hoistingtlrum.`a connterweight near one Y end of the track for assisting said hoistingmechanism in lifting a loaclfantl a rope conconncctingthc hoisting drumand the connl nect'iug the hoisting (lrniu and t-hc counter` l weight. y

3T. A track, a hoisting mechanism movahly supported thereon, saidmechanism.

comprising a hoisting drum antl means for actuating said ilrum, acoimterweightnear one entl. of the 'track for assisting-said hoistingmechanism in lifting a. load, and e. rope connecting the hoisting drumand the enamel-eight i 3Q. A track, a hoisting mechanism 'mov-,abiysupported tlieieomxsaitl mechanism 5 comprising a' hoisting drumand'means for t actuating saitl clrum, a eounterweight naar l one end ofthe-track for assisting said hoisting mechanism in Vlifting a load, anda rope .system connecting the hoisting drinn and the eonntemi'eight,Said rope system being so arranged that the lateral movement of `theiisting mechanism does not atfectthe po l sition ofthe c'onntcrweighi.'A 1. 39. A track, a hoisting mechanism movi ably supported thereon,saitt mechanism comprising a hoisting drum and means for one entl of thetrack for assisting said hoisting mechanism in liftinga load, a ropeconnecting the hoisting flrum and thecon-nterweight. and means formoving the hoisting mechanism along the track.

In testimony `whereof, I afiix my signature, in presence of twoWitnesses.

I i OLE JOHNSON. 'g Witnesses:

y VA. L. MoasnLL,

,ANNA F. SCHMmTmU-en.

actuating said cli-mn, a connterweight near

